document.write( "Question 124117: You earn $15 an hour mowing lawns an $10 an hour washing windows.
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document.write( "You want to make $400 in one week. An Alkgebraic model for your earnings is
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document.write( "15x + 10y = 400. where x is the number of hours mowing lawns and y is the number of hours washing windows.\r
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document.write( "Solve the equation for y?\r
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document.write( "Sketch a grapg of the equation? \n" );
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Algebra.Com's Answer #91004 by chitra(359)![]() ![]() You can put this solution on YOUR website! The equation for y can be written as: \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "15x + 10y = 400\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==> 10y = 400 + 15x \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==> y = (400/10) + (15/10)x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==> y = 40 + 1.5x \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The graph of the above equation is: \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " |